package com.zrf.gulimall.order.web;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.zrf.gulimall.order.config.AliPayTemplate;
import com.zrf.gulimall.order.service.OrderService;
import com.zrf.gulimall.order.vo.PayAsyncVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

/**
 * @Author zhanrf
 * @Date 2022/1/9 17:47
 */
@RestController
public class OrderPayedController {

	@Autowired
	private OrderService orderService;

	@Autowired
	private AliPayTemplate aliPayTemplate;

	@PostMapping("/payed/notify")
	public String handleAliPay(PayAsyncVo payAsyncVo, HttpServletRequest request) throws AlipayApiException {
		// 只要收到支付宝的异步通知，返回 success 支付宝便不再通知
		// 获取支付宝POST过来反馈信息
		// 需要验签
		Map<String, String> params = new HashMap<>();
		Map<String, String[]> requestParams = request.getParameterMap();
		for (String name : requestParams.keySet()) {
			String[] values = requestParams.get(name);
			String valueStr = "";
			for (int i = 0; i < values.length; i++) {
				valueStr = (i == values.length - 1) ? valueStr + values[i]
						: valueStr + values[i] + ",";
			}
			//乱码解决，这段代码在出现乱码时使用
			// valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
			params.put(name, valueStr);
		}
		//调用SDK验证签名
		boolean signVerified = AlipaySignature.rsaCheckV1(params, aliPayTemplate.getAliPayPublicKey(),
				aliPayTemplate.getCharset(), aliPayTemplate.getSignType());
		if (!signVerified) {
			return "error";
		}
		return orderService.handlePayResult(payAsyncVo);
	}
}
